Publications by authors named "H Mayrhofer"
In lichen research, metagenomes are increasingly being used for evaluating symbiont composition and metabolic potential, but the overall content and limitations of these metagenomes have not been assessed. We reassembled over 400 publicly available metagenomes, generated metagenome-assembled genomes (MAGs), constructed phylogenomic trees, and mapped MAG occurrence and frequency across the data set. Ninety-seven percent of the 1,000 recovered MAGs were bacterial or the fungal symbiont that provides most cellular mass.
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- - A checklist of 916 lichen species was compiled for the Paneveggio-Pale di San Martino Natural Park in northern Italy, based on extensive research from literature, herbaria, and field observations.
- - This area is a significant hotspot for lichen diversity, representing 30.1% of the lichen species found in the entire Alpine region, despite occupying only 0.064% of its land area.
- - The findings underscore the necessity of detailed species inventories to enhance our understanding of biodiversity, taxonomy, ecology, and conservation efforts; three species were newly identified in Italy, along with 18 others in the Trentino-Alto Adige region.
Lichen symbioses are thought to be stabilized by the transfer of fixed carbon from a photosynthesizing symbiont to a fungus. In other fungal symbioses, carbohydrate subsidies correlate with reductions in plant cell wall-degrading enzymes, but whether this is true of lichen fungal symbionts (LFSs) is unknown. Here, we predict genes encoding carbohydrate-active enzymes (CAZymes) and sugar transporters in 46 genomes from the Lecanoromycetes, the largest extant clade of LFSs.
View Article and Find Full Text PDFBased on the analysis of both historical and recent collections, this paper reports an annotated list of taxa which are new to the lichen biota of Italy or of its administrative regions. Specimens were identified using a dissecting and a compound microscope; routine chemical spot tests and standardized thin-layer chromatography (TLC or HPTLC). The list includes 225 records of 153 taxa.
View Article and Find Full Text PDFThe botanical exploration of the Majella National Park has a long tradition dating back to the eighteenth century. However, the lichen biota of this area is still poorly investigated. To provide a baseline for future investigations, in this annotated checklist, we summarised all available information on the occurrence of lichens in the Majella National Park, retrieved from previous literature, herbarium material and original data produced by recent research.
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